MonoScene: Monocular 3D Semantic Scene Completion

• URL: http://arxiv.org/abs/2112.00726v1
• Date: Wed, 1 Dec 2021 18:59:57 GMT
• Title: MonoScene: Monocular 3D Semantic Scene Completion
• Authors: Anh-Quan Cao, Raoul de Charette
• Abstract summary: Mono proposes a 3D Semantic Scene Completion (SSC) framework, where the dense geometry and semantics of a scene are inferred from a single monocular image. Our framework relies on successive 2D and 3D UNets bridged by a novel 2-3D features projection inspiring from optics.
• Score: 9.92186106077902
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: MonoScene proposes a 3D Semantic Scene Completion (SSC) framework, where the dense geometry and semantics of a scene are inferred from a single monocular RGB image. Different from the SSC literature, relying on 2.5 or 3D input, we solve the complex problem of 2D to 3D scene reconstruction while jointly inferring its semantics. Our framework relies on successive 2D and 3D UNets bridged by a novel 2D-3D features projection inspiring from optics and introduces a 3D context relation prior to enforce spatio-semantic consistency. Along with architectural contributions, we introduce novel global scene and local frustums losses. Experiments show we outperform the literature on all metrics and datasets while hallucinating plausible scenery even beyond the camera field of view. Our code and trained models are available at https://github.com/cv-rits/MonoScene

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